from MAZ:
"Under the pseudonyms Christof Friedrich and Mattern Friedrich, Ernst Zundel also wrote several publications promoting the idea that UFOs were really secret weapons of the Nazis who had fled to New Swabia in Antarctica. These titles include "Secret Nazi Polar Expeditions" [1978] and "Hitler at the South Pole" [1979]). He promoted the idea of Nazi secret bases in Antarctica, Nazi UFOs, secret polar bases and Hollow Earth theories."